New liquefaction hazard maps of Santa Clara Valley, Northern California
Tuesday, January 27, 2009 - 13:08
in Earth & Climate
New hazard maps for communities from San Jose to Palo Alto in Northern California delineate the probability of earthquake-induced liquefaction, based on three scenarios: a magnitude 7.8 on the San Andreas Fault comparable to the 1906 event, a magnitude 6.7 on the Hayward Fault comparable to the 1868 event, and a magnitude 6.9 on the Calavaras Calaveras Fault. The probability of liquefaction is highest at approximately 33 to 37 percent in some areas along major creeks for the San Andreas Fault scenario when the water table is relatively shallow, according to the report published by the February issue of the Bulletin of the Seismological Society of America (BSSA)...